<img id="image" src="ufo.png" width="240" height="140"

style="position: absoluteleft: 0pxtop: 0px" />

不是很简单一两句话能说清楚地，需要HTML, CSS和javascript的配合。我大概说下做法，你需要自己写写试试看

首先把你的div设置style为overflow hidden

然后在div里面再添加一个div，假设叫做imgcontainer，在里面存放所有图片，图片以float: left方式显示，每个图片的宽度你是知道的，这样图片的个数*每个图片的宽度（必要的话再加上图片之间的间隔）设置为imgcontainer的总宽度。然后把div的宽度设置为显示3个图片的宽度。这样就可以保证只显示3个图片，多余的图片看不到。

然后在点击左右2个按钮的时候添加事件，每点击一次，让imgcontainer的marginLeft增加或减少一个图片的宽度（同样必要的时候加上图片之间的间隔距离），这样就使得图片列表在左右移动了。

下面是我的一个例子，跟你的需求可能不完全一样，大概做下参考：

HTML片段

<div id="pagecontent" class="pagecontent">

<div id="nav_thumbs_prev" class="disabled" onclick="NavThumbsPrev()"></div>

<div id="photolist_container">

<ol id="photolist" class="photolist">

<li><figure onclick="ViewPhoto(this,'aaaaa')"><div class="samplecontainer"><img src="./img/singularity.jpg" onload="javascript:DrawSampleImage(this)" border="0" ></div><figcaption class="imagename">aaaaa</figcaption></figure></li>

<li><figure onclick="ViewPhoto(this,'bbbbb')"><div class="samplecontainer"><img src="./img/pyre.jpg" onload="DrawSampleImage(this)" border="0" ></div><figcaption class="imagename">bbbbb</figcaption></figure></li>

<li><figure onclick="ViewPhoto(this,'cccc')"><div class="samplecontainer"><img src="./img/newborn.jpg" onload="javascript:DrawSampleImage(this)" border="0" ></div><figcaption class="imagename">cccc</figcaption></figure></li>

<li><figure onclick="ViewPhoto(this,'dddd')"><div class="samplecontainer"><img src="./img/pyre.jpg" onload="javascript:DrawSampleImage(this)" border="0" ></div><figcaption class="imagename">dddd</figcaption></figure></li>

<li><figure onclick="ViewPhoto(this,'eeee')"><div class="samplecontainer"><img src="./img/singularity.jpg" onload="javascript:DrawSampleImage(this)" border="0" ></div><figcaption class="imagename">eeee</figcaption></figure></li>

<li><figure onclick="ViewPhoto(this,'ffff')"><div class="samplecontainer"><img src="./img/pyre.jpg" onload="javascript:DrawSampleImage(this)" border="0" ></div><figcaption class="imagename">ffff</figcaption></figure></li>

<li><figure onclick="ViewPhoto(this,'gggg')"><div class="samplecontainer"><img src="./img/newborn.jpg" onload="javascript:DrawSampleImage(this)" border="0" ></div><figcaption class="imagename">gggg</figcaption></figure></li>

<li><figure onclick="ViewPhoto(this,'hhhh')"><div class="samplecontainer"><img src="./img/pyre.jpg" onload="javascript:DrawSampleImage(this)" border="0" ></div><figcaption class="imagename">hhhh</figcaption></figure></li>

<li><figure onclick="ViewPhoto(this,'iiii')"><div class="samplecontainer"><img src="./img/newborn.jpg" onload="javascript:DrawSampleImage(this)" border="0" ></div><figcaption class="imagename">iiii</figcaption></figure></li>

<li><figure onclick="ViewPhoto(this,'jjjj')"><div class="samplecontainer"><img src="./img/singularity.jpg" onload="javascript:DrawSampleImage(this)" border="0" ></div><figcaption class="imagename">jjjj</figcaption></figure></li>

<li><figure onclick="ViewPhoto(this,'kkkk')"><div class="samplecontainer"><img src="./img/newborn.jpg" onload="javascript:DrawSampleImage(this)" border="0" ></div><figcaption class="imagename">kkkk</figcaption></figure></li>

<li><figure onclick="ViewPhoto(this,'llll')"><div class="samplecontainer"><img src="./img/pyre.jpg" onload="javascript:DrawSampleImage(this)" border="0" ></div><figcaption class="imagename">llll</figcaption></figure></li>

<li><figure onclick="ViewPhoto(this,'mmmm')"><div class="samplecontainer"><img src="./img/singularity.jpg" onload="javascript:DrawSampleImage(this)" border="0" ></div><figcaption class="imagename">mmmm</figcaption></figure></li>

<li><figure onclick="ViewPhoto(this,'nnnn')"><div class="samplecontainer"><img src="./img/pyre.jpg" onload="javascript:DrawSampleImage(this)" border="0" ></div><figcaption class="imagename">nnnn</figcaption></figure></li>

<li><figure onclick="ViewPhoto(this,'oooo')"><div class="samplecontainer"><img src="./img/singularity.jpg" onload="javascript:DrawSampleImage(this)" border="0" ></div><figcaption class="imagename">oooo</figcaption></figure></li>

<li><figure onclick="ViewPhoto(this,'pppp')"><div class="samplecontainer"><img src="./img/pyre.jpg" onload="javascript:DrawSampleImage(this)" border="0" ></div><figcaption class="imagename">pppp</figcaption></figure></li>

</ol>

</div>

<div id="nav_thumbs_next" onclick="NavThumbsNext()"></div>

</div>

CSS部分

.photolist_container {

margin: 0

/*Firefox*/

width: -moz-calc(100% - 30px)

/*chrome safari*/

width: -webkit-calc(100% - 30px)

/*Standard */

width: calc(100% - 30px)

float: left

height: 140px

overflow: hidden

}

ol.photolist {

background-color: black

margin: 0

margin-left: 1px

padding: 0

list-style: none

height: auto

padding: 0

display: block

height: 125px

}

ol.photolist>li {

margin: 0

margin-left: -1px

padding: 4px

text-align:center

display:inline

float: left

border: 1px solid #FF6699

width: 100px

}

#photolist figure {

margin: 0

padding: 0

text-align:center

border: 1px solid #000000

cursor: pointer

}

.samplecontainer {

height: 100px

width: 100px

text-align: center

margin: 0

padding: 0

border: 0

display: table-cell

vertical-align: middle

}

.samplecontainer>img {

margin: 0

padding: 0

border: 0

vertical-align:middle

}

Javascript部分

function MovePhotoList(size) {

var photolist = document.getElementById("photolist")

var marginLeft = 1

if (photolist.style.marginLeft != "")

marginLeft = parseInt(photolist.style.marginLeft)

marginLeft = marginLeft + size

if (marginLeft <(document.getElementById("photolist_container").offsetWidth - photolist.offsetWidth))

{

marginLeft = document.getElementById("photolist_container").offsetWidth - photolist.offsetWidth

document.getElementById("nav_thumbs_next").setAttribute("class", "disabled")

}

else

{

document.getElementById("nav_thumbs_next").setAttribute("class", "enable")

}

if (marginLeft >1)

{

marginLeft = 1

document.getElementById("nav_thumbs_prev").setAttribute("class", "disabled")

}

else

{

document.getElementById("nav_thumbs_prev").setAttribute("class", "enable")

}

photolist.style.marginLeft = marginLeft + "px"

}

function NavThumbsPrev() {

var nav_thumbs_prev = document.getElementById("nav_thumbs_prev")

if (nav_thumbs_prev.getAttribute("class") != "disabled") {

MovePhotoList(56)

}

}

function NavThumbsNext() {

var nav_thumbs_next = document.getElementById("nav_thumbs_next")

if (nav_thumbs_next.getAttribute("class") != "disabled") {

MovePhotoList(-56)

}

}

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